...While the male in a relationship should indeed practice responsibility, it's the woman who'll be carrying the outcome around for nine months. Unless she wants the child, it's her responsibility to make sure she doesn't get pregnant... whether that means being on contraceptive pills, making sure he uses prophylactics, or abstinence, etc. Not that that relieves him of doing his part, but he's not the one who's going to be dealing with the physical consequences.
The spankings... that one's a multi-edged thing; broad humor, but also tying into his idea of "there can only be one boss" and it has to be one or the other -- ostensibly, at any rate. ....